20017982

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{2003}}^1$

素因数の和:2287

約数の個数: 16

約数和(自身を含む): 31743360

約数和(自身を除く): 11725378

約数列:

[1, 2, 19, 38, 263, 526, 2003, 4006, 4997, 9994, 38057, 76114, 526789, 1053578, 10008991, 20017982]

約数ペア:

[(1, 20017982), (2, 10008991), (19, 1053578), (38, 526789), (263, 76114), (526, 38057), (2003, 9994), (4006, 4997)]